Emil tyden



(No Model.)

rE. TYDEN.

WATER FILTER.

i, ma

in. /}y Ver) for Qin.

Patented Apr. 26

WM? @SS63- UNI-Tan STATES PATENT @Idrica EMIL TYnnN, or cI-IIoAcO, ILLINOIS, AssIeNon To THE METROPOLITAN FILTER COMPANY, or SAME PLACE.

FILTER.

SPECIFICATION forming part 0f Letters Patent No. 602,883, dated April 26, 1898.

Application led Tune 2l, 189'?.

To LH 1071.071?, it may concern:

Be it known that I, EMIL TYDEN, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Vater-Filters, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part thereof.

AIn the drawings, Figure l is a front elevation of my improved filter. Fig. 2 is a vertical section axial with respect to the two cylinders and connecting-duct. Fig. Sis a plan of the base-iitting on which the cylinders are mounted. Fig. 4 is a horizontal section at the line e 4 on Fig. 2. Fig. 5 shows the lter mounted by connection with a water-supply pipe.

A is a cast tting constituting the base of my filter. It is provided with pipe connections A and Ab, the former for attachment to the water-supply pipe and the latter to afford connection for a discharge-faucet. On the upper side it has two circular flanges AC and Ad, interior-ly threaded and adapted to receive the water-cylinders O and Q, respectively. In the base A are formed two cavities P and S, which open inwardly and thereby communicate with the lower ends of the cylinders O and Q, respectively. Concentric with the flange Ac, into which the cylinder C is screwed, is an annulus Ae, seated with intervening packing ce on the base A and having a flange Ae, within which the iiitering-cylinder H is retained, being stepped on a packinggasket C, lodged'upon the upper surface of the web of the iitting A, said annulus Ae operating practically as if it were a iange or uprise from the base'A, and within 'this annulus A@ is a third annulus, which is a fiange or boss around the margin of the Opening P into the chamber P, and into this flange or boss Af there is screwed a pipe G.

V is a cap whose marginal flange Va receives the upper end of the filtering-cylinder H, a packing-gasket Ob being interposed between the end of the cylinder' H and its seat on the cap. Centrally disposed with respect to the cap, depending from its under side, is`

a hollowr hub Vb, which at its lower end is threaded, and thereby adapted to be screwed Serial No. 641,610, (No model.)

onto the upper end of the pipe G, and at the center of the cap it has an aperture VC. In the upper web of the tting A, inside the flange AQ, is an opening Ka, leading by way of the passage K to the. chamber S, and at this opening Ka there is connected a pipe I, opening between the pipe G and the lteringcylinder H. Outside of the annular flange Ae, in the upper web of the iitting A, is an opening R, which leads by way of the passage R to the faucet connection Ab. Between the flanges Ae and Afa passage T opens into lthe cylinder O, said passage being extended vertically through the fitting A without direct communication with any other of the passages in, said fitting, and at the lower end of said passage T is connected a petcock E. Considering the structure thus described, it will be noticed that when the filter is attached to the water-supply pipe the water entering at A may pass through the chamber P up through the pipe G, and thence through the aperture Vc in the cap V it may pass into the annular chamber "W between the cylinder C and the ltering-oylinder I-I, and from said chamber W it may pass by way oi' the passage R through the discharge-cock D, or said disvh charge-cock being closed it will pass through the wall of the filtering-cylinder H and occupy the annular chamber F within said iilteringcylinder and outside the pipe G and may be drawn from the chamber F by the petcock E, or it may pass also by way of overflow out of the top of said chamber F, following through the pipe I and passage K into the chamber S, and thenceup into the reservoir or storagecylinder Q. The entrance to the reservoir Q is controlled by a valve L, seating upwardly on the bottom Q, which is sprung upward from the horizontal web of the fitting to form a valve-chamber under said bottom. A turret QD is provided at the center of the bottom to aiford guidance for the stem L of the valve L, and to this stem is connected a iioat N by means of a chain M, the length of which permits the iioat to rise nearly to the top of the cylinder Q, and when at its limit to hold the Valve L seated upwardly.

Lb is a cup which receives the chain and affords lodgment for the ioat N when the latter is at the lowest point. In the chamber lIco which is formed in the hollow hub Vb of the cap V there is a valve U, adapted to seat over the upper end of the pipe G-that is, at the lower end of the chamber in the hub V". This valve has a stem Ua, which extends out through the opening Vc in the cap and is suitably guided in a yoke or staple V, which springs from the top of the cap and overhangs the opening Vc for the purpose of affording guidance to the valve-stein. The other end of the stem below the valve U is bent at Uh, so that it obtains guidance in the pipe G. The purpose of this valve is that if the water should be drawn from the supply system at some point lower than that at which the filter is attached, the outlet thus opened being sufficient to exhaust the entire supply, whereby the flow at such lower opening would tend to draw the water out of the filter, the reverse movement of the water thus induced operating upon the valve U will seat it downward over the end of the pipe G and cause it to retain the water in the filter. The stem U of the valve is of such length that its upper end is stopped against the cap V when the valve U is at a position which permits the water to flow around it and out through the aperture Vc.

In the use of this filter water for drinking or any other purpose for which the filtered Water is desired will be drawn through the petcock E. This petcock, taking the water from the lowest point of the annular chamber F inside the filtering-cylinder H, will draw the coldest water and that which was last filtered, because thechamber F becoming lled to the top of the pipe I the overflow will constantly pass over into the reservoir Q, and water is carried from the reservoir only by the same passage-that is, by passing back through the overflow-pipe I into the annular chamber F and out through the petcock. Water for other use not requiring it to be filtered is drawn through the cock D, and such water being in domestic use always drawn in much larger quantity than that which is filtered there will be a constant cooling effect experienced by reason of such water passing all around the filtering-'cylinder H in comparatively large quantity, tending thus to cool the water which may have been standing some time in the chamber F, so that the water drawn through the petcock E, flowing during the time the cock is open at a greater rate than it can permeate the filter, will tend to create a vacancy in the upper part of the chamber F, which will be filled by the return of the water from the reservoir through the pipe I; but before this water thus returned from the reservoir reaches the bottom of the chamber F, so as to be ready to pass out through the petcock, it will be eX- posed for a considerable time to the cooling reservoir Q. In practice in domestic use when the supply water is reasonably' cool the filtered water drawn through the cock E will at all times be nearly as cool as if it were drawn directly from the su pply-pipe, and at the same time the supply maintained in the reservoir Q makes it possible to draw rapidly from the petcock without emptying the chamber F, be-

cause the latter is constantly supplied from the reservoir, the reservoir being refilled by filtering in the intervals between drawings from the petcock. The supply drawn from the cock D, being compelled t0 pass through the narrow cylindrical passage between the filtering-cylinder H and the outer case O and the size of the faucet being such as to permit it to now freely, will operate to scour the outer surface of' the filtering-cylinder and carry off the deposit due to filtering.

In Fig. 5 there is shown a T Da, interposed between the cock D and the filter for the purpose of connecting the pipe Db, which may extend to any other part of the house where water may be drawn, as to a bath-room, so that not only the water drawn at the faucet I), but all the water drawn at any point in the house, may pass around the cylinder H and assist in keeping it cold.

I claimn l. In combination with a filter, a reservoir connected with the filtered-water chamber of the lter adapted to receive filtered water from the latter and to deliver the same back thereinto, and a cock for drawing water from the filtered-water chamber.

2. In a lter, in combination with a filtered- Water chamber having a cock for drawing water therefrom at the bottom; a reservoir communicating with the ltered-water chamber at the top of the latter, whereby the filtered water from said chamber overiiows into the reservoir and returns by the same passage when the water is drawn from the bottom of the chamber.

3. In a filter, in combination with the waterinlet pipe, a check-valve adapted to be seated by backflow through said pipe to prevent the emptying of the filter as described.

4. In a filter, in combination with the central supply-pipe Gr, the filtering-cylinder H outside the same and the outer cylinder O, whereby there are formed two annular chambers F and W located respectively between the inner pipe and the lteringcylinder and between the filtering-cylinder and the outer cylinder; the cap V which closes the chamber F at the top having a waterway through it leading from the pipe G to the outer chamber W, and a faucet leading from the lower end of said outer chamber W, whereby the drawing of water from said faucet scours the outer surface of the iiltering-cylinder.

5. In a filter, in combination with the waterinlet pipe, the filtering-cylinder and the outer cylinder, the cap which closes the upper end of the chamber between the inlet-pipe and the filtering-cylinder and which has a central IOO waterway aording communication from the pipe to the space outside the iltering-cylinder; a reservoir communicating with the upper part of the space inside the flltering-oyl inder and having no communication with the space outside the same; a drain-cook leading. from the lower part of the space inside the filtering-cylinder, and a faucet leading from the lower part of the space outside the cylinder, all combined and operating for the purpose set forth.

6. ln a filter, in combination with the oen tral inlet-pipe G, lteriug-cylinder H and outer cylinder O and their respecting intervening chambers F and lW; the cap V which closes the upper end of the chamber F, said cap having a hollow hub constituting a valvecharnber having a lower support and conmy hand, in the presence of two witnesses, at 3o Chicago, illinois, this l th dayr of June, 1897.

EMIL TYDEN.

Witnesses:

CEAS. S. BURTON, JEAN ELLIOTT. 

